/* * Copyright (C) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.hookedonplay.decoviewlib.interpolator;

import ohos.agp.components.AttrSet;
import ohos.app.Context;

/**
 * Bounce interpolator
 */
public class BounceInterpolator extends BaseInterpolator {
    /**
     * Bounce interpolator
     */
    public BounceInterpolator() {
    }


    /**
     * Bounce interpolator
     *
     * @param context context
     * @param attrs   attrs
     */
    public BounceInterpolator(Context context, AttrSet attrs) {
    }

    /**
     * Bounce float
     *
     * @param t t
     * @return the float
     */
    private static float bounce(float t) {
        return t * t * 8.0f;
    }

    /**
     * Get interpolation float
     *
     * @param input input
     * @return the float
     */
    public float getInterpolation(float input) {
        input *= 1.1226f;
        if (input < 0.3535f) {
            return bounce(input);
        } else if (input < 0.7408f) {
            return bounce(input - 0.54719f) + 0.7f;
        } else if (input < 0.9644f) {
            return bounce(input - 0.8526f) + 0.9f;
        } else {
            return bounce(input - 1.0435f) + 0.95f;
        }
    }
}